In this video we are going to learn that how we can install and create a react js app.
React is a JavaScript library for building user interfaces.
It is maintained by Facebook and a community of individual developers and companies.
React can be used as a base in the development of single-page or mobile applications.
React allows us to create reusable UI components.

So lets create a react app.
First of all you have to install node js.
So goto the nodejs.org and.
From here first download and then install it.
I have already installed.
So, I am able to go forward.
Now lets install create-react-app.
So goto the command prompt and here.
Just run the command.

npm install -g create-react-app

This command will install create-react-app globaly.
It will take few minutes.
Alight now create-react-app is installed.
So, now we can able to create a react app.
For creating a react app use command.

npx create-react-app myapp

Here npx is a tool for running npm packages.
Alright, now press enter Now its create the react app.
It will take few minutes.
So wait until the finish the installation process.
Alright now react app is created.
So, now just switch to the project directory.
So just type here.

cd myapp

Now run this react app.
So just type here the command.

npm start

Ok now its running on localhost:3000
lets check, So goto the browser and here just type into the url.
localhost:3000
and here you can see react app is running.
So in this way you can create a new react app using create-react-app package.